Overchan is a free browser application by miku-nyan. The application gives extra add-on and tools capabilities on the default browser for mobile devices and tablets. It allows users to access most social image boards under a single optimized platform. Users can assign separate settings for any imageboard, as well as install personalized themes. For example, they can assign a password for deleting posts on 4ch, specify an HTTP/SSL for 8ch, or even assign a proxy server when entering 2ch (dvach). This browser application helps users to hide post and threads automatically by regular expressions. They are also given an option to update any open tabs running in the background. Posts are sendable in the background, as well as displayable either as separate references or as lists. The application includes Dollchan Script where any threads with file attachments are available for saving in HTML format.